The application of solid acids as catalyst in the synthesis of isobutyl acetate from isobutanol and acetic acid was studied. pToluene sulfonic acid, tungstophoric acid and molybdophoric acid had good catalytic activity as sulfuric acid but lost the activity gradually in continuous runs. Adding a little amount of phosphoric or ascorbic acid could improve the catalytic stability strong acidic cation exchange resin and SO 2- 4/TiO 2, a solid supper strong acid,had good activity and excelent stability,and the former, in granular state, was easily separated from reaction mixture, had suoerior properties for the substitute of sulfuric acid which now is used commercially in the manufacture.
solid acid catalysts
solid super strong acid
strong acidic cation exchange resin